What is that you are brewing on? Grill? Can you achieve a pretty quick boil on it?
It's an older model Coleman Powerhouse two burner camp stove. Each "burner" is actually a 35k BTU burner surrounded by a 100k BTU burner. The aluminum pot on the left is a 15 gallon pot. From mash it brings the wort up to boil in about 5 minutes at full blast and brings my sparge water up to boil from 60 degrees F to 180 in about 15 minutes.
For comparison purposes, that is a 30 lb tank that it is hooked up to.